## How to Calculate the Quantity of a Conveyor Belt on a Roll

How to Calculate the Quantity of a Conveyor Belt on a Roll. By: L.P. Klages. Updated September 26, 2017. ... Determine the overall diameter of the roller plus the thickness of the belt. For example, if the conveyor belt you are using is 1/2-inch thick, the overall diameter is the core diameter, 8 inches, plus twice the thickness of the belt, 1 ...